> Markdown version of [/jobs/ext/4558824-senior-python-developer-react-ai](https://www.wearedevelopers.com/jobs/ext/4558824-senior-python-developer-react-ai). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Python Developer- React, "AI" - **Company:** Dotcom Team, LLC - **Location:** New York, NY, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** LangGraph Framework, Application Programming Interfaces (APIs), Artificial Intelligence, User Authentication, Databases, Relational Databases, Database Design, Database Queries, Dependency Injection, Django Web Framework, Middleware, Python (Programming Language), PostgreSQL, Microsoft SQL Server, MySQL, OAuth, OpenID, Performance Tuning, Query Optimization, Role-Based Access Control, Openid Connect, Session Management, Single Sign-On, Software Deployment, SQLAlchemy, Data Streaming, Systems Integration, Management of Software Versions, Web Application Frameworks, ReactJS, Flask (Web Framework), Large Language Models, Database Optimization, Software Security, Indexer, Backend, Agentic-AI, Fastapi, Front End Software Development, React Redux, Restful APIs, Model Context Protocol, Api Management, Microservices - **Published:** November 4, 2026 - **Apply:** https://www.dice.com/job-detail/52b935f9-675f-46d6-b9de-7ff77a93ff5a ## About the Role * Python Backend (Primary): Strong, hands-on experience building backend services with FastAPI / Flask / Django - async patterns, dependency injection, middleware, API versioning, testing, and production deployment * Databases: Deep practical experience with PostgreSQL / MySQL / SQL Server - complex queries, joins, indexing, transactions, ORM usage (SQLAlchemy / Django ORM), and performance tuning * Authentication & Security: Demonstrated depth in auth frameworks beyond JWT basics - OAuth 2.0, OIDC, SSO, RBAC, secure session handling, and API security best practices * RESTful APIs: Proven experience designing, building, and integrating REST APIs and backend services at scale * AI / Agentic AI / MCP: Solid understanding of LLM fundamentals, agentic AI architectures (planning, tool use, multi-step workflows), and the Model Context Protocol (MCP) for agent-system integration; familiarity with frameworks such as LangChain / LangGraph is a strong plus * ReactJS (Secondary): Hands-on expertise with ReactJS - Hooks, component lifecycle, and state management (Redux / Context API) ## Description We are seeking a highly skilled Full Stack Developer with deep, hands-on Python backend engineering experience as the core of the role, complemented by working proficiency in ReactJS for frontend development. This is a backend-first full-stack position - candidates must demonstrate strong depth in Python services, database design, and authentication/authorization frameworks, along with a solid understanding of AI, Agentic AI systems, and the Model Context Protocol (MCP)., * Design and develop scalable, production-grade backend services using Python frameworks (FastAPI / Flask / Django) * Architect, build, and integrate RESTful APIs and backend microservices with strong attention to performance, reliability, and security * Design and optimize relational database structures using PostgreSQL / MySQL / SQL Server - including schema design, indexing strategies, query optimization, and data modeling * Implement robust authentication and authorization frameworks beyond basic JWT - including OAuth 2.0 / OpenID Connect, SSO integrations, session management, token lifecycle (refresh/rotation/revocation), and role-based / attribute-based access control (RBAC/ABAC) * Develop responsive frontend applications using ReactJS (Hooks, state management) to support backend-driven features * Integrate AI and LLM-powered capabilities into backend services, including agentic workflows and tool-calling patterns * Apply MCP (Model Context Protocol) concepts to connect AI agents with backend services, APIs, and data sources * Collaborate with cross-functional teams on API contracts, data flows, and end-to-end feature delivery * Own assigned features and technical deliverables through completion, proactively communicating progress, risks, dependencies, and blockers while collaborating effectively with team members, subcontractors, and client stakeholders